(Leader of Neturei Karta, 1894-1974). Autograph Letter written in Hebrew to R. Yitzchak Ya’akov Weiss (1902-89) of Manchester.

Draft letter detailing R. Blau’s passionate, yet respectful opposition to R. Weiss’s appointment to head the Eidah HaChareidith - despite the fact that the move was supported by the Satmar Rebbe. “Although your honor is a famous Gaon in all parts of our Torah, you are weak in the chapters of Masechta Avodah Zara (idolatry) of present day Zionism… You should not accept this position.” R. Yitzchak Ya’akov Weiss, author of the multi-volume responsa Minchath Yitzchak, was a world renowned expert in Jewish law who served as Rabbi of Grosswardein, Manchester and eventually, the Eidah HaChareidith community of Jerusalem.